Factory Direct Sale Three Phase Step Down High Voltage Oil Transformers 400KVA 500KVA 630KVA
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Changsha Hunan China
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Room905, D6 building, CCSP Industrial Park, Yuelu District, Changsha，Hunan province, China
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Product Details
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Product Details
Factory Direct Sale Three Phase Step Down High Voltage Oil
Transformers 400KVA 500KVA 630KVA
Product Specifications
| Attribute | Value |
|---|---|
| Frequency | 50Hz, 60Hz |
| Phase | Three |
| Coil Number | Multi Winding, Three Windings, Two Windings, Single Winding |
| Application | Distribution system |
| Coil Structure | Round coil |
| Output Voltage | 415V, 220V, 380V, 400V, 440V |
| Input Voltage | 10.5kV, 3kV, 6.6kV, 6.3kV |
| Type | Oil-Immersed Transformer |
| Winding Material | 100% Copper/Aluminum |
| Cooling Method | ONAN |
| Capacity | 400KVA, 500KVA, 630KVA |
| Vector Group | Dyn11 / Yyn0 |
| Temperature Rise | Less than 65°C |
| Efficiency | Up to 99% |
Product Description
Oil-immersed transformers with optimized cooling channels using pressboard gaskets—supporting both ONAN and ONAF cooling for efficient heat management. Designed for low loss, high efficiency, and excellent cooling performance, our transformers are widely used in power grids, industrial zones, and renewable energy projects. Custom designs are available, fully compliant with IEC, ANSI, and other international standards.
Key Advantages
- Significantly reduces operational costs and energy consumption
- Extended maintenance intervals with reduced upkeep costs
- Reduces no-load loss for improved efficiency
- Customization available to meet specific requirements
Technical Parameters
| Rated capacity (KVA) | Vector Group | Voltage Combination | No-load loss | Load loss | No-load current | Impedance |
|---|---|---|---|---|---|---|
| 30 | Yyn0 / Dyn11 | 10 6.3 6 | 80 | 630 | 1.5 | 4.0 |
| 50 | 100 | 910 | 1.3 | |||
| 63 | 110 | 1090 | 1.2 | |||
| 80 | 130 | 1310 | 1.2 | |||
| 100 | 150 | 1580 | 1.1 | |||
| 125 | 170 | 1890 | 1.1 | |||
| 160 | 200 | 2310 | 1.0 | |||
| 200 | 240 | 2730 | 1.0 | |||
| 250 | 290 | 3200 | 0.9 | |||
| 315 | 340 | 3830 | 0.9 | |||
| 400 | 410 | 4520 | 0.8 | |||
| 500 | 480 | 5410 | 0.8 | |||
| 630 | 570 | 6200 | 0.6 | 4.5 |
Consulting & Ordering Process
Step 1: Inquiry & Quotation
We respond within 1 hour with suitable transformer recommendations, competitive quotations, and payment terms. Our technical team will confirm all specifications within 7 days after payment, including technical data, weight, and parts list.
Step 2: Production & Quality Control
After finalizing production drawings, we prepare materials and conduct rigorous quality inspections. We provide QC reports and test certificates to guarantee product quality. Special accessory requirements can be accommodated.
Step 3: Installation & After-Sales
Our professional team provides installation guidance and on-site support when needed. All products come with a minimum 2-year warranty for your peace of mind.
Why Choose Our Transformers?
- In-house R&D and manufacturing ensures quality control
- Fast delivery with quick response to inquiries
- OEM/ODM customization available
- Comprehensive after-sales support
- Extensive export experience worldwide
Factory Direct Sale Three Phase Step Down High Voltage Oil Transformers 400KVA 500KVA 630KVA
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